Water-feed for acetylene-lamps.



J. M. DOWNING.

WATER FEED PQR ACETYLBNR LAMPS.

APPLIGATXON NLE!) 23,1914,

1,1 19,936. Patented Dec.8,1914.

JOHN M. DOWNING, OF EAST ST. LOUIS, ILLINOIS.

WATER-FEED FOR ACETYLENE-LAI'IPS.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application tiled May 23, 1914. Serial No. 840,578.

T0 allow/wm.- 'it may concern Be it known that I, JOHN M. DOWIIING, acitizen of the United States, and resident `of East St. Louis,vIllinois, have invented The object of my invention is to provide animproved water feed for acetylene lamps, wherein the water will be fedto the carbid by more accurate and efficient means than have been usedin lamps heretofore known to me.

Heretofore in miners acetylene lamps there has been much difficulty incfliciently regulating the water feed and an additional ob]ect of myinvention is to remedy such defects in said lamps.

1n the drawings: Figure 1 is a sectional side elevation of a minersacetylene lamp having my invention applied thereto; Fig. 2 is anenlarged sectional plan view taken on the line 2-2 of Fig. 1; Fig. 3 isan enlarged sectional plan view taken on the line 3-3 of Fig. 1; Fig. 4is an enlarged vertical section of the details of the water feed tubeand its connections, and Fig. 5 is a scctional plan view taken on theline 5 5 of Fig. 4.

Referring by numerals to the accompanying drawings: 6 indicates theusual water receptacle having the filling cap 7 and the hook 8, by meansof which the lamp is attached to the miners cap, and said waterreceptacle is mounted above the usual carbid container 9. The numeral 10indicates the water tube, which extends vertically through the saidwater receptacle (3 and through the bottom plate 11 thereof, andprojects downwardly within saidcarbid container 9. Upon the lower end ofsaid water tube 10 is loosely mounted to slide a guard sleeve 12, thelower end of which sleeve is provided with suitable water exits 13.Small exit apertures 14 are also formedin said sleeve at a point somedistance above its lower end. Mounted within said water tube 10 is thevalve stem 15, which is threaded at its upper end and has screwed onsaid y threaded portion a handle 16 which bearsagainst the upper end ofsaid tube 1,0,"to ad]ust the valve 17 which is formed upon or secured tothe lower end of said valve stein,` and said valve is adapted to controlthe exit i of water from the lower end of said tube. The numeral 18indicates a coil spring1 which is mounted upon the exterior of saidwater tube 10 within said carbid container 9, and the upper end of saidspring bears against a perforated strainer Hate 19. and l the lower endof which spring* ears against the upper endof said uard sleeve 12, forthe purpose of urging tie lower end .of-said sleeve into contact withsaid valve 17,' and also for the purpose of retaining the said strainerplate 19 in contact with a filter disk 20, which is located between saidstrainer plate and said bottom 11 of the said water receptacle. Thebottom 11 of said 'water receptacle is provided with a gas exit 21,'which communicates with the interior of a gas passage 22. burner tube 23is con; nected to the lower portion of said water receptacle, so thatthe interior 0j said tube is in communication with`said gas passage 22,and a common burner tip 24 is located as usual in the outer end of saidburner tube. The usual reflector 25 is mounted upon said burner tube.Depending from the lowervl end of said water receptacle 6 is the usual?cap for the said carbid container 9, and said rap is provided witlrtheusual threads 26-- for engaging like threads Z7 formedv on the neck atHthe upper -end of said carbid con# tainer, and a suitable gasket'28 isclamped between the said cap and the body of saidcontainer for thepurpose of making a. tight joint between the said parts. 29 indicates alug forming a handle on the underside of said strainer plate 19. Formedin the said water tube 1() adjacent the bottom of said water receptacle6 is a feed openingf, whereby water may pass from "said water receptacleto the interior of I'said water tube. The said valve stem 15 is providedwith a flattened portion 31 at its lower end and the lower portion ofsaid water tube is correspondingly liattened upon its interiori.

the said water receptacle to the carbid con- Sainefl in the carbidcontainer, it will only be necessary iso rotaie 'the said handle 16 uponthreaded valu-e siem 15, thereby unsere-ving the said handle :inclallowing ille eadSpring 123 to force down\\-=er ly the said guardele-'re 152, and it in turn w`ll force open the valve 17, allowing:rWat-er to out of the lower end. of said water tube and bence :throughthe water exits 13 'to the carbid contained in said carbid conminer,when the gas will be generated in the usual way and pass upwardly,flbrougli the perforations of the said Stra-inerplute 19, thence to thegas exit' 21, thence to the gas passage 22 and the burner tube 23'.

From the above it wilbbe seen that my improved constrct-on permits thewater to be fed o the carbid 'in very cclratc and elicient manner, andthat the regulationo the Water may be very accurately controlled. Inpractice, should the lower Water erfits 13 become clogged by the ashes,the ,Weber can still make its exit through the smell apertures 14.

Gne of the principal'adi/*ante4 es Ofrny invent-ion is the readyremoval. o? the' 'valve stenr and other parte' for the pos 'of cleaningsaine, and it will be reedilj'lfeen thatby detacl'ling the handle'1.61115' lsaid Valve stem may be readily withdrawn from the Water tube10 and the valve'gn'rird sleeve 12, and the spring 18 and sLrai'verplate 19 mimosa Warflly at all times, and thereby retains sa handle inany fposilggg; at 'which 1t may be edyisteri, sind prevents it being)arred loose 1. 1n an acetylene lamp, a rimer-rege ecle, :1. Icarbid co1miner," a. tube exten ing throng! "seid 'ver receptacleinto said carbidconyainer, a valve-stem -locsiized .wit 'n mounted on'seidwzrer tubewitliin'ejid carbid co11ta1ner,`a valve' et 'the lower end of slee veinto contact -Wltb tseid "ValVe'.'

1n testimony whereof, 1 A have signed my nfi'rn'e to' Chis-specifcrt-ioiilrpresence of We 'subscribing' witnesses.' v

' JHNM. DWNNG.

said stem, 'and a sbring for iufgng scifi Witnesses:

E. L. WVAILACE, JOHN C; HIGDON.

6 0 for cleaning purposes, a'gnard sleeveloosely

